UV Protection -- The lenses of the goggles are treated with UV absorbers to protect the eyes from harmful UV rays. Enjoy your swimming time!ANTI-FOG AND LEAK-FREE -- The inner surface of the lens is anti-fog coated with the latest environmental treatment technology to provide superior visual clarity. The goggles feature high-quality dual-silicone material and an ergonomic design that ensures the lenses remain strong and leak-free even in the harshest conditionsProtectSUPER COMFORTABLE - The soft and flexible design means you can get the best fit for adult, men's and women's swimming goggles. No need to over-tighten and leave no marks after swimming!Total Satisfaction Always - Your experience with the product is our guideline. Our goggles are tested by professional swimmers and coaches, so our products will always meet your needs and redefine your swimming experience. Our goal is to make you look good, swim well and feel good.